International Geological Congress. 461 



them, but it is simply a question of using one general color- 

 base for a column of measures which have certain points of 

 analogy and are usually found together. They could be easily 

 distinguished from each other by differences of tint or other 

 means. 



M. Jacquot replied that he could not see any reason for 

 uniting two things that are distinct. 



M. Hauchecorne (Secretary), said: Gentlemen, we must get 

 on, and I ask as a personal favor on behalf of the committee 

 on the chart of Europe, that the members repose a certain 

 amount of confidence in it. It is not intended to prejudge any 

 question or force upon the delegates any views other than 

 those they desire to support. He suggested that the fourth 

 article might be so altered as to allow the committee to adopt 

 provisionally according to their choice, a scheme of colors for 

 convenience, and that this choice should not decide the scien- 

 tific question connected therewith at all. 



M. Jacquot accepted tfie suggestion of the Secretary, and 

 thereupon section 4 was adopted. 



5th. The eruptive rocks shall be represented by seven tints 

 ranging from dark to light red. Carried. 



6th. The solution of other questions that might arise were- 

 referred to the committee on the chart for decision. Carried. 



M. Choffat (Portugal) said that in joining the Dogger and 

 the Malm, a junction is made which is opposed by all paleonto- 

 logical and petrographical evidences. 



M. Hauchecorne stated that in his opinion the objection was 

 too much a matter of detail to be brought before the Congress 

 at this time, and he appealed to M. Choffat to withdraw his 

 objection. 



M. Choffat replied that, in doing his work in Portugal, it 

 was impossible for him to take this view of the two series. 



M. Hauchecorne again appealed in the name of the com- 

 mittee to M. Choffat, to withdraw his objection, stating that 

 the committees on the maps of Europe and of Portugal would 

 have ample time to consider and adjust all these points of differ- 

 ence. No definite action was taken. 



M. Hauchecorne then announced that the council would 

 meet at 11 a. m. and the Congress at 2 P. M. on Wednesday. 

 The first two hours of the session would be devoted to busi- 

 ness and the last two to purely scientific discourses. 



2d Session, 2:30 p. m., 30th Sept. 



At the request of Dr. Beyrich, the Honorary President, Dr. 

 von Dechen, took the chair. The Secretary then made an- 

 nouncements in regard to excursions, and stated that the Con- 

 gress until 4 P. M., would discuss the report of the committee 



